John 19:24-37 But one of the soldiers with a spear pierced his side, and forthwith came there out blood and water.
Hebrews 13:20 Now the God of peace, that brought again from the dead our Lord Jesus, that great shepherd of the sheep, through the blood of the everlasting covenant,
So we see the testimony of God on earth by the Spirit, the water and the blood!
There is another testimony of God that Jesus is His beloved Son in the story of the transfiguration. We need to consider this as well. Please read from Matthew 17 with me: Here too God is testifying to the fact that Jesus is His beloved Son and He is pleased with Him and we are to obey Him!
Matthew 17: 1- 5
Believe on the Lord Jesus today, Receive Him as your Savior and Lord, He is truly the Son of God - our only Savior! Jesus is our Savior, and there is no other at all!
And this is the record, that God hath given to us eternal life, and this life is in his Son.